<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="en" dir="ltr" class="client-nojs">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Experimental C++ standard libraries - cppreference.com</title>
<meta charset="UTF-8">
<meta name="generator" content="MediaWiki 1.21.2">


<link rel="shortcut icon" href="../../favicon.ico">



<link rel="stylesheet" href="../../common/ext.css">
<meta name="ResourceLoaderDynamicStyles" content="">
<link rel="stylesheet" href="../../common/site_modules.css">
<style>a:lang(ar),a:lang(ckb),a:lang(fa),a:lang(kk-arab),a:lang(mzn),a:lang(ps),a:lang(ur){text-decoration:none}#toc{display:none}.editsection{display:none}
/* cache key: mwiki1-mwiki_en_:resourceloader:filter:minify-css:7:472787eddcf4605d11de8c7ef047234f */</style>

<script src="../../common/startup_scripts.js"></script>
<script>if(window.mw){
mw.config.set({"wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"cpp/experimental","wgTitle":"cpp/experimental","wgCurRevisionId":71824,"wgArticleId":13460,"wgIsArticle":true,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Todo without reason"],"wgBreakFrames":false,"wgPageContentLanguage":"en","wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgMonthNamesShort":["","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"],"wgRelevantPageName":"cpp/experimental","wgRestrictionEdit":[],"wgRestrictionMove":[]});
}</script><script>if(window.mw){
mw.loader.implement("user.options",function(){mw.user.options.set({"ccmeonemails":0,"cols":80,"date":"default","diffonly":0,"disablemail":0,"disablesuggest":0,"editfont":"default","editondblclick":0,"editsection":0,"editsectiononrightclick":0,"enotifminoredits":0,"enotifrevealaddr":0,"enotifusertalkpages":1,"enotifwatchlistpages":0,"extendwatchlist":0,"externaldiff":0,"externaleditor":0,"fancysig":0,"forceeditsummary":0,"gender":"unknown","hideminor":0,"hidepatrolled":0,"imagesize":2,"justify":0,"math":1,"minordefault":0,"newpageshidepatrolled":0,"nocache":0,"noconvertlink":0,"norollbackdiff":0,"numberheadings":0,"previewonfirst":0,"previewontop":1,"quickbar":5,"rcdays":7,"rclimit":50,"rememberpassword":0,"rows":25,"searchlimit":20,"showhiddencats":0,"showjumplinks":1,"shownumberswatching":1,"showtoc":0,"showtoolbar":1,"skin":"cppreference2","stubthreshold":0,"thumbsize":2,"underline":2,"uselivepreview":0,"usenewrc":0,"watchcreations":0,"watchdefault":0,"watchdeletion":0,
"watchlistdays":3,"watchlisthideanons":0,"watchlisthidebots":0,"watchlisthideliu":0,"watchlisthideminor":0,"watchlisthideown":0,"watchlisthidepatrolled":0,"watchmoves":0,"wllimit":250,"variant":"en","language":"en","searchNs0":true,"searchNs1":false,"searchNs2":false,"searchNs3":false,"searchNs4":false,"searchNs5":false,"searchNs6":false,"searchNs7":false,"searchNs8":false,"searchNs9":false,"searchNs10":false,"searchNs11":false,"searchNs12":false,"searchNs13":false,"searchNs14":false,"searchNs15":false,"gadget-ColiruCompiler":1});;},{},{});mw.loader.implement("user.tokens",function(){mw.user.tokens.set({"editToken":"+\\","patrolToken":false,"watchToken":false});;},{},{});
/* cache key: mwiki1-mwiki_en_:resourceloader:filter:minify-js:7:ca03345b1e2c4d90a25d968753a73b92 */
}</script>
<script>if(window.mw){
mw.loader.load(["mediawiki.page.startup","mediawiki.legacy.wikibits","mediawiki.legacy.ajax"]);
}</script>
<!--[if lt IE 7]><style type="text/css">body{behavior:url("/mwiki/skins/cppreference2/csshover.min.htc")}</style><![endif]-->
</head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental skin-cppreference2 action-view cpp-navbar">
        <!-- header -->
        
        <!-- /header -->
        <!-- content -->
        <div id="cpp-content-base">
            <div id="content">
                <a id="top"></a>
                <div id="mw-js-message" style="display:none;"></div>
                                <!-- firstHeading -->
                <h1 id="firstHeading" class="firstHeading">Experimental C++ standard libraries</h1>
                <!-- /firstHeading -->
                <!-- bodyContent -->
                <div id="bodyContent">
                                        <!-- tagline -->
                    <div id="siteSub">From cppreference.com</div>
                    <!-- /tagline -->
                                        <!-- subtitle -->
                    <div id="contentSub"><span class="subpages">&lt; <a href="../cpp.html" title="cpp">cpp</a></span></div>
                    <!-- /subtitle -->
                                                            <!-- bodycontent -->
                    <div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr">
<div class="t-navbar" style="">
<div class="t-navbar-sep"> </div>
<div class="t-navbar-head">
<a href="../cpp.html" title="cpp"> C++</a><div class="t-navbar-menu"><div>
<div><table class="t-nv-begin" cellpadding="0" style="line-height:1.1em;">
<tr class="t-nv"><td colspan="5"> <a href="language.1.html" title="cpp/language"> Language</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="header.html" title="cpp/header"> Standard library headers</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="concept.html" title="cpp/concept"> Concepts</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="utility.html" title="cpp/utility"> Utilities library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="string.html" title="cpp/string"> Strings library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="container.html" title="cpp/container"> Containers library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="algorithm.html" title="cpp/algorithm"> Algorithms library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="iterator.html" title="cpp/iterator"> Iterators library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="numeric.html" title="cpp/numeric"> Numerics library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="io.html" title="cpp/io"> Input/output library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="locale.html" title="cpp/locale"> Localizations library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="regex.html" title="cpp/regex"> Regular expressions library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="atomic.html" title="cpp/atomic"> Atomic operations library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="thread.html" title="cpp/thread"> Thread support library</a> <span class="t-mark-rev t-since-cxx11">(C++11)</span> </td></tr>
</table></div>
<div></div>
</div></div>
</div>
<div class="t-navbar-sep"> </div>
</div>
<p>The C++ standards committee publishes experimental C++ language and library extensions for future standardization.
</p>
<p>Note: until 2012, these publications used the TR (technical report) format. Since 2012 ISO procedure changed to use the TS (technical specification) format.
</p>
<table class="wikitable">

<tr>
<th>ISO number</th>
<th>Name</th>
<th>Status</th>
<th>links
</th>
</tr>
<tr>
<td> ISO/IEC TR 19768:2007
</td>
<td> Technical Report on C++ Library Extensions
</td>
<td> TR 29124 split off, the rest merged into C++11
</td>
<td>
</td>
</tr>
<tr>
<td> ISO/IEC TR 29124:2010
</td>
<td> Extensions to the C++ Library to support mathematical special functions
</td>
<td> published
</td>
<td>
</td>
</tr>
<tr>
<td> ISO/IEC TR 24733:2011
</td>
<td> Extensions for the programming language C++ to support decimal floating-point arithmetic
</td>
<td> published, to be superseded by Decimal TS or merged into C++17 via <a rel="nofollow" class="external text" href="http%3A//www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3871.html">n3871</a>
</td>
<td>
</td>
</tr>
<tr>
<td> ISO/IEC PDTS 18822:xxxx
</td>
<td> C++ Standard Library File System Technical Specification
</td>
<td> ready for DTS ballot. Draft: <a rel="nofollow" class="external text" href="http%3A//www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3940.html">n3940</a> (2014-03-02)
</td>
<td> <a href="experimental/fs.html" title="cpp/experimental/fs"><tt>fs</tt></a>
</td>
</tr>
<tr>
<td> ISO/IEC PDTS 19568:xxxx
</td>
<td> C++ Extensions for Library Fundamentals
</td>
<td> ready for PDTS ballot. Draft: <a rel="nofollow" class="external text" href="http%3A//www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4023.html">n4023</a> (2014-05-21)
</td>
<td>
<a href="experimental/optional.html" title="cpp/experimental/optional"><tt>optional</tt></a>
<p><a href="experimental/any.html" title="cpp/experimental/any"><tt>any</tt></a><br>
<a href="experimental/basic_string_view.html" title="cpp/experimental/basic string view"><tt>basic_string_view</tt></a><br>
<a href="experimental/memory.html" title="cpp/experimental/memory"> Polymorphic allocators</a>
</p>
</td>
</tr>
<tr>
<td> ISO/IEC PDTS 19569:xxxx
</td>
<td> Array Extensions TS
</td>
<td> In development. Draft: <a rel="nofollow" class="external text" href="http%3A//www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3820.html">n3820</a> (2013-10-10)
</td>
<td>
</td>
</tr>
<tr>
<td> ISO/IEC PDTS 19570:xxxx
</td>
<td> Parallelism TS
</td>
<td> ready for PDTS ballot. Draft: <a rel="nofollow" class="external text" href="http%3A//www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3989.html">n3989</a> (2014-05-23)
</td>
<td>
</td>
</tr>
<tr>
<td> ISO/IEC PDTS 19571:xxxx
</td>
<td> Concurrency TS
</td>
<td> In development: Draft: <a rel="nofollow" class="external text" href="https%3A//github.com/cplusplus/concurrency_ts/blob/master/concurrency-ts.html">n3970</a> (2014-05-??)
</td>
<td>
</td>
</tr>
<tr>
<td>
</td>
<td> Transactional Memory TS
</td>
<td> Early development, Draft: <a rel="nofollow" class="external text" href="http%3A//www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3999.pdf">n3999</a> (2014-05-23)
</td>
<td>
</td>
</tr>
<tr>
<td> ISO/IEC PDTS 19216:xxxx
</td>
<td> Networking TS
</td>
<td> no working paper
</td>
<td>
</td>
</tr>
<tr>
<td> ISO/IEC PDTS 19217:xxxx
</td>
<td> Concepts TS
</td>
<td> In development. Draft: <a rel="nofollow" class="external text" href="http%3A//www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4040.pdf">n4040</a> (2014-05-26)
</td>
<td>
</td>
</tr>
</table>
<p><br>
</p>
<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style=""><tr>
<td class="mbox-empty-cell"></td>
<td class="mbox-text" style="">This section is incomplete </td>
</tr></table>

<!-- 
NewPP limit report
Preprocessor visited node count: 505/1000000
Preprocessor generated node count: 4349/1000000
Post‐expand include size: 12221/2097152 bytes
Template argument size: 1446/2097152 bytes
Highest expansion depth: 17/40
Expensive parser function count: 0/100
-->

<!-- Saved in parser cache with key mwiki1-mwiki_en_:pcache:idhash:13460-0!*!0!*!*!*!* and timestamp 20140625171754 -->
</div>                    <!-- /bodycontent -->
                                        <!-- printfooter -->
                    <div class="printfooter">
                    Retrieved from "<a href="http%3A//en.cppreference.com/mwiki/index.php">http://en.cppreference.com/mwiki/index.php?title=cpp/experimental&amp;oldid=71824</a>"                    </div>
                    <!-- /printfooter -->
                                                            <!-- catlinks -->
                    <div id="catlinks" class="catlinks"><div id="mw-normal-catlinks" class="mw-normal-catlinks">
<a href="http%3A//en.cppreference.com/w/Special%3ACategories" title="Special:Categories">Category</a>: <ul><li><a href="http%3A//en.cppreference.com/w/Category%3ATodo_without_reason" title="Category:Todo without reason">Todo without reason</a></li></ul>
</div></div>                    <!-- /catlinks -->
                                                            <div class="visualClear"></div>
                    <!-- debughtml -->
                                        <!-- /debughtml -->
                </div>
                <!-- /bodyContent -->
            </div>
        </div>
        <!-- /content -->
        <!-- footer -->
        
        <!-- /footer -->
        <script>if(window.mw){
mw.loader.state({"site":"loading","user":"missing","user.groups":"ready"});
}</script>
<script src="../../common/skin_scripts.js"></script>
<script>if(window.mw){
mw.loader.load(["mediawiki.action.view.postEdit","mediawiki.user","mediawiki.page.ready","mediawiki.searchSuggest","mediawiki.hidpi","ext.gadget.ColiruCompiler"], null, true);
}</script>
<script src="../../common/site_scripts.js"></script>

<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-2828341-1']);
_gaq.push(['_setDomainName', 'cppreference.com']);
_gaq.push(['_trackPageview']);
</script><!-- Served in 0.083 secs. -->
	</body>
<!-- Cached 20140625172111 -->
</html>
